// Copyright (c) 2020 Huawei Technologies Co., Ltd
// Copyright (c) 2019, Facebook CORPORATION. 
// All rights reserved.
//
// Licensed under the BSD 3-Clause License  (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include <aten/src/ATen/npu/NPUEvent.h>
#include <c10/npu/NPUStream.h>
namespace c10 {
namespace npu {
using namespace at::npu;
struct SecondaryStreamGuard{
  explicit SecondaryStreamGuard() = delete;
  explicit SecondaryStreamGuard(Stream stream) : guard_(stream) {};

  ~SecondaryStreamGuard() {
      NPUEvent npu_event;
      npu_event.record(guard_.current_stream());
      npu_event.block(guard_.original_stream());
  }
private:
  NPUStreamGuard guard_;
};
} // namespace NPU
} // namespace c10